Calculation/app/controller/signature_controller.js

'use strict';
/**
 * Created by Tony on 2019/9/26.
 */
const fs = require('fs');

module.exports = app => {
    class ReportController extends app.BaseController {

        /**
         * 创建电子签名角色
         *
         * @param {Object} ctx - egg全局context
         * @return {void}
         */
        async createSignatureRole(ctx) {
            const params = JSON.parse(ctx.request.body.params);
            // console.log(params);
            const rst = await ctx.service.signatureRole.createRole(params.name, params.bind_acc_id, params.prj_id, params.tender_id);
            // console.log(rst);
            ctx.body = { data: rst };
            // ctx.body = { data: { msg: 'test the network' } };
            ctx.status = 201;
        }

        /**
         * 创建签名角色关联
         *
         * @param {Object} ctx - egg全局context
         * @return {void}
         */
        async createRoleRel(ctx) {
            const params = JSON.parse(ctx.request.body.params);
            // console.log(params);
            const rst = await ctx.service.roleRptRel.createRoleRelationship(params.tender_id, params.rpt_id, params.rel_content);
            // console.log(rst);
            ctx.body = { data: rst };
            // ctx.body = { data: { msg: 'test the network' } };
            ctx.status = 201;
        }

        /**
         * 更新签名角色关联
         *
         * @param {Object} ctx - egg全局context
         * @return {void}
         */
        async updateRoleRel(ctx) {
            const params = JSON.parse(ctx.request.body.params);
            // console.log(params);
            const rst = await ctx.service.roleRptRel.updateRoleRelationship(params.id, params.tender_id, params.rpt_id, params.stage_id, params.rel_content);
            const roleRel = await ctx.service.roleRptRel.getRoleRptRelByDetailIds(params.tender_id, params.rpt_id, params.stage_id);
            // const roleRel = params.rel_content;
            await encodeSignatureDataUri(roleRel, this.app.baseDir);
            // console.log(rst);
            ctx.body = { data: rst, signatureRelInfo: roleRel };
            // ctx.body = { data: { msg: 'test the network' } };
            ctx.status = 201;
        }

        /**
         * 获取多个标段签名角色关联
         *
         * @param {Object} ctx - egg全局context
         * @return {void}
         */
        async getMultiRoleRptRels(ctx) {
            const params = JSON.parse(ctx.request.body.params);
            const conParams = params.selectedTenders;
            const rst = await ctx.service.roleRptRel.getCrossTenderRoleRptRels(conParams);
            ctx.body = { data: rst };
            ctx.status = 201;
        }

        /**
         * 跨标段更新签名角色关联
         *
         * @param {Object} ctx - egg全局context
         * @return {void}
         */
        async updateCrossTendersRoleRelationship(ctx) {
            const params = JSON.parse(ctx.request.body.params);
            const conParams = params.selectedTenders;
            // conParams.push([params.tender_id, params.stage_id, params.rpt_id]); // 传过来的数据是额外项目的，还需要加上自己一个
            const roleRel = params.rel_content;
            // updateMultiRoleRelationship
            // console.log(params.rel_content);
            await ctx.service.roleRptRel.updateRoleRelationship(params.id, params.tender_id, params.rpt_id, params.stage_id, params.rel_content); // 传过来的数据是额外项目的，还需要单独处理当前的
            const rst = await ctx.service.roleRptRel.updateMultiRoleRelationship(conParams, roleRel);
            ctx.body = { data: rst };
            ctx.status = 201;
        }

        /**
         * 更新最近使用签名
         *
         * @param {Object} ctx - egg全局context
         * @return {void}
         */
        async updateSignatureUsed(ctx) {
            const params = JSON.parse(ctx.request.body.params);
            const used_time = ctx.request.body.create_time;
            const signused = await ctx.service.signatureUsed.updateUsed(params, used_time);
            const signUsedList = await ctx.service.signatureUsed.getSignatureUsedByTenderId(params.tender_id);
            // const rst = await ctx.service.signatureRole.createRole(params.name, params.bind_acc_id, params.prj_id, params.tender_id);
            // console.log(rst);
            ctx.body = { data: signUsedList };
            // ctx.body = { data: { msg: 'test the network' } };
            ctx.status = 201;
        }

    }

    return ReportController;
};

function isFileExisted(file) {
    return new Promise(function(resolve, reject) {
        fs.access(file, err => {
            if (err) {
                reject(false);
            } else {
                resolve(true);
            }
        });
    });
}

async function encodeSignatureDataUri(roleRel, baseDir) {
    if (roleRel) {
        for (const singleRoleRel of roleRel) {
            if (singleRoleRel.rel_content !== null && singleRoleRel.rel_content !== undefined && singleRoleRel.rel_content !== '') {
                const roleRelContent = JSON.parse(singleRoleRel.rel_content);
                for (const role of roleRelContent) {
                    // console.log(role);
                    if (role.sign_path !== '') {
                        const filePath = baseDir + '/app' + role.sign_path;
                        try {
                            const res = await isFileExisted(filePath);
                            if (res) {
                                const bData = fs.readFileSync(filePath);
                                const base64Str = bData.toString('base64');
                                const datauri = 'data:image/png;base64,' + base64Str;
                                role.sign_pic = datauri;
                            } else {
                                console.log('文件不存在：' + filePath);
                            }
                        } catch (err) {
                            console.error(err);
                        }
                    }
                }
                singleRoleRel.rel_content = JSON.stringify(roleRelContent);
            } else {
                singleRoleRel.rel_content = [];
            }
        }
    }
}